Incumbently vs Wappalyzer An extension shows one site. We watch the market.
What each tool sees, how early it spots a switch, and what it costs. Facts about Wappalyzer come from its own site and docs.
Wappalyzer is great for checking one website at a time with its browser extension, used by about 3 million people. Incumbently watches every company that uses a product, catches back-end tools a browser can't see, and alerts you when an account starts switching. You can ask it questions in Claude or ChatGPT.
- Market-wide lists and alerts, not one site at a time
- Back-end and hiring signals that a browser extension can't see
- Paid plans from $149 a month, with alerts, contacts and API credits included
I found 18 accounts with switch signals in the last 30 days. Here are the strongest five, each with the signals behind it:
46 sources · open any row to see the DNS record, certificate or job post
Feature by feature. Incumbently and Wappalyzer.
Who sees the switch first.
A company switching tools leaves signals in a rough order. Here is which steps each tool can see, based on the sources it uses.
What a switch alert looks like. With what changed and when.
- Oct 02Job post: “Support Ops lead, Salesforce experience”Jobs
- Oct 11help-new subdomain appears in certificate logsCert
- Oct 19New Head of Support, used Salesforce at last jobHire
- Oct 28DNS now points to SalesforceDNS
- Jobs 3 job posts ask for Salesforce experience
- Cert New support subdomain issued 9 days ago
- Hire New Head of Support joined from a Salesforce customer
- Watch HubSpot and see every customer it has
- Get an alert the week one of them starts switching
- Open the case file to see each signal and where it came from
- Draft the first email straight from the alert
An honest split.
- You need lists of accounts, not one-off lookups
- You want to know when accounts start switching
- You work in Claude, ChatGPT or Cursor
Wappalyzer fits if you mostly want a quick browser check of a single website's front-end tools.
Incumbently vs Wappalyzer, answered.
The browser extension is free. Paid plans with lead lists and API access cost $250 to $850+ a month, and plan credits expire after 60 days (checked November 2026).
Not yet. We started with MCP, so you can ask about any company from Claude, ChatGPT or Cursor, plus a dashboard and an API.
It reads what a website loads in the browser, so tools behind the scenes usually don't show up. Incumbently reads infrastructure records and hiring data to find them.
Wappalyzer is a trademark of its owner. We compare products using public pricing and documentation. Features and prices change. If something here is out of date, email us and we will fix it.
Switching from Wappalyzer?
See who is leaving your competitor this month, with the signal behind each account. Start free, no card needed.